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Some cases of problems for harmonic functions with oblique derivative with polynomial coefficients. (Russian. English summary) Zbl 0637.31003

The Poincaré problem to find harmonic functions symmetric with respect to the axis is considered, when the boundary conditions with polynomial coefficients are given.

MSC:

31B05 Harmonic, subharmonic, superharmonic functions in higher dimensions
35J25 Boundary value problems for second-order elliptic equations
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